note on the reverse of the right side of an ancient document
Archaic term for a memorandum or explanation written on the back of the right-hand portion of an old document. Used in historical or paleographic contexts.
The note on the reverse of the right side of an ancient document sometimes contains a summary of its contents.
Compound of 端 (はし, 'edge, end') + 裏 (うら, 'back, reverse') + 書 (かき, 'writing'). The exact historical derivation is uncertain; the term refers to a specific practice in ancient Japanese document handling.